کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5747746 1618919 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
As, Cd and Hg in the organs of Todarodes pacificus, Sepia longipes and Sepia madokai in the East China Sea
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
As, Cd and Hg in the organs of Todarodes pacificus, Sepia longipes and Sepia madokai in the East China Sea
چکیده انگلیسی


- Cd in the T. pacificus in East China Sea is concentrated and discharged.
- Benthic cuttlefishes had higher As concentration than pelagic squids in all organs.
- Arsenic concentrates by food in squids and cuttlefishes in East China Sea.
- Squids and cuttlefishes can become biomarker of marine environmental changes.

Arsenic and Cadmium concentrations in Todarodes pacificus (4 males and 4 females), Sepia longipes (1 male and 3 unknown), five Sepia madokai caught in 2012 (1 male and 4 females) and five S. madokai caught in 2014 (5 females) were collected from the East China Sea (ECS) during intervals from 2010 Oct. through to 2014 Oct. The internal organs were vacuum dried and the elements were measured by ICP-MS. Among the toxic elements, As, Cd, and Hg in the digestive gland, gonads and branchial hearts of squids and cuttlefishes were measured separately. The squid T. pacificus practically inhabits offshore, whereas cuttlefishes, such as S. longipes and S. madokai, inhabit bottom coastal waters in the ECS. Cd concentration in digestive gland of T. pacificus and S. madokai is higher than similar species from other regions. This high concentration seems to be derived from anthropogenic activities and geological conditions present in the ECS. The squid and cuttlefish also accumulate high amounts of As, not only in their digestive gland but also in other organs. Arsenic could be derived from high volcanic activities. In the case of Hg, the muscles were reported to contain the highest concentration in the species studied, but unlike concentration of Cd in digestive gland, it was high compared to other studies. These elements can be utilized as indicators for environmental pollution in marine systems. For monitoring of harmful elements in squids and cuttlefish, for example Cd and As in the digestive gland and Hg in mantle should be measured.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 145, November 2017, Pages 103-110
نویسندگان
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